I-Methylcellulose (MC) iyi-cellulose encibilika emanzini enokujiya, ukwakha ifilimu, ukuzinza nezinye izakhiwo. Ivame ukusetshenziswa ekudleni, emithini, ekwakheni, ezimonyweni nakwezinye izinkambu. Indlela yayo yokuncibilika emanzini ihlukile futhi kulula ukwakha isixazululo se-colloidal, ngakho-ke indlela efanele yokuxuba ibalulekile emphumeleni wayo.
1. Izici ze-methylcellulose
I-Methylcellulose ayincibiliki kalula ekushiseni kwegumbi, futhi ukuncibilika kwayo kuthinteka kakhulu yizinga lokushisa. Emanzini abandayo, i-methylcellulose ingakha isixazululo esifanayo ngokuhlakazeka kancane kancane; kodwa emanzini ashisayo, izovuvukala ngokushesha futhi ijeli. Ngakho-ke, ukulawula izinga lokushisa kubaluleke kakhulu lapho kuhlanganiswa i-methylcellulose namanzi.
2. Ukulungiselela
I-Methylcellulose: Itholakala kubaphakeli bezinto zokusetshenziswa zamakhemikhali noma emalabhorethri.
Amanzi: Kunconywa ukusebenzisa amanzi acwengekile noma ahlanjululwe ukuze kugwenywe ukungcola emanzini aqinile okungathinti ukuncibilika kwe-methylcellulose.
Imishini Yokuxuba: Kuye ngezidingo zakho, kungasetshenziswa umshini wokuxuba ngesandla olula, umshini wokuxuba omncane osheshayo, noma imishini yokuxuba yezimboni. Uma kuwumsebenzi welabhorethri encane, kunconywa ukusebenzisa umshini wokuxuba onama-magnetic.
3. Isinyathelo sokuxuba
Indlela 1: Indlela yokuhlakazwa kwamanzi abandayo
I-premix yamanzi abandayo: Thatha inani elifanele lamanzi abandayo (kungcono u-0-10°C) bese uwafaka esitsheni sokuxuba. Qiniseka ukuthi izinga lokushisa lamanzi lingaphansi kuka-25°C.
Faka i-methylcellulose kancane kancane: Thela kancane kancane i-methylcellulose powder emanzini abandayo, uvuselele ngenkathi uthela. Njengoba i-methylcellulose ivame ukuhlangana, ukuyifaka ngqo emanzini kungakha amaqhubu, kuthinte ukuhlakazeka okufanayo. Ngakho-ke, ijubane lokwengeza lidinga ukulawulwa ngokucophelela ukuze kugwenywe ukwengeza inani elikhulu le-powder ngokushesha.
Hlanganisa kahle: Sebenzisa i-mixer ngesivinini esiphakathi noma esiphansi ukuze usakaze ngokuphelele i-methylcellulose emanzini. Isikhathi sokuxuba sincike ekuqineni kwesisombululo sokugcina okufiswayo kanye nohlobo lwemishini, futhi ngokuvamile sihlala imizuzu emi-5-30. Qiniseka ukuthi azikho izinqwaba noma izinqwaba zempuphu.
Ukuvuvukala: Ngesikhathi ixuba, i-methylcellulose izomunca amanzi kancane kancane futhi ivuvuke, yakhe isixazululo se-colloidal. Le nqubo ingathatha isikhathi, kuye ngohlobo kanye nenani le-methylcellulose esetshenzisiwe. I-methylcellulose ene-viscosity ephezulu ithatha isikhathi eside.
Yiyeke ihlale kuze kube yilapho ivuthiwe: Ngemva kokuyixuba sekuqediwe, kungcono ukuyiyeka ihlale amahora ambalwa noma ubusuku bonke ukuqinisekisa ukuthi i-methylcellulose incibilike ngokuphelele futhi ivuvukele ngokuphelele. Lokhu kungathuthukisa kakhulu ukulingana kwesisombululo.
Indlela 2: Indlela ephindwe kabili yamanzi ashisayo nabandayo
Le ndlela ifaneleka kakhulu kwi-methylcellulose enamathelayo okunzima ukuyihlakaza ngqo emanzini abandayo.
I-premix yamanzi ashisayo: Shisa ingxenye yamanzi ibe ngu-70-80°C, bese ufaka ngokushesha amanzi afudumele bese ufaka i-methylcellulose. Ngalesi sikhathi, ngenxa yokushisa okuphezulu, i-methylcellulose izokhula ngokushesha kodwa ngeke incibilike ngokuphelele.
Ukuncibilikisa amanzi abandayo: Ngesikhathi uqhubeka nokuxuba isisombululo sokushisa okuphezulu, engeza kancane kancane amanzi abandayo asele kuze kube yilapho izinga lokushisa lesisombululo lehla liye ekushiseni okuvamile noma ngaphansi kwama-25°C. Ngale ndlela, i-methylcellulose evuvukele izoncibilika emanzini abandayo bese yakha isisombululo esiqinile se-colloidal.
Ukuxuba nokuvumela ukuthi ime: Qhubeka uvuselela ngemva kokupholisa ukuqinisekisa ukuthi isixazululo siyafana. Ingxube iyashiywa ihlale kuze kube yilapho incibilika ngokuphelele.
4. Izinyathelo Zokuqapha
Izinga lokushisa lokulawula: Ukuncibilika kwe-methylcellulose kuzwela kakhulu ekushiseni. Ngokuvamile kusakazeka kahle emanzini abandayo, kodwa kungakha ijeli elingalingani emanzini ashisayo. Ukuze kugwenywe lesi simo, kuvame ukunconywa ukusebenzisa indlela yokuhlakazeka kwamanzi abandayo noma indlela ephindwe kabili eshisayo nebandayo.
Gwema ukuhlangana: Njengoba i-methylcellulose imunca kakhulu, ukuthulula inani elikhulu lempuphu ngqo emanzini kuzokwenza ukuthi ubuso bukhule ngokushesha futhi bakhe ama-clumps ngaphakathi kwephakeji. Lokhu akugcini nje ngokuthinta umphumela wokuncibilika, kodwa futhi kungaholela ekuqineni okungalingani komkhiqizo wokugcina. Ngakho-ke, qiniseka ukuthi ufaka impuphu kancane bese uvuselela kahle.
Isivinini sokuxubha: Ukuxubha ngesivinini esikhulu kungangenisa kalula inani elikhulu lamabhamuza, ikakhulukazi ezixazululweni ezine-viscosity ephezulu. Amabhamuza azothinta ukusebenza kokugcina. Ngakho-ke, ukusebenzisa ukuxubha ngesivinini esiphansi kuyisinqumo esingcono uma udinga ukulawula i-viscosity noma ivolumu yamabhamuza.
Ukuhlushwa kwe-methylcellulose: Ukuhlushwa kwe-methylcellulose emanzini kunethonya elikhulu ekuncibilikeni kwayo kanye nezakhiwo zesisombululo. Ngokuvamile, ekuhlushweni okuphansi (ngaphansi kuka-1%), isisombululo sincane futhi kulula ukusixuba. Ekuhlushweni okuphezulu (okungaphezu kuka-2%), isisombululo sizoba sikhulu kakhulu futhi sidinga amandla aqinile lapho sixuba.
Isikhathi sokuma: Ngesikhathi sokulungiselela isixazululo se-methylcellulose, isikhathi sokuma sibalulekile. Lokhu akugcini nje ngokuvumela i-methylcellulose ukuthi incibilike ngokuphelele, kodwa futhi kusiza amabhamuza asesixazululweni ukuthi anyamalale ngokwemvelo, kugwenywe izinkinga zamabhamuza ekusetshenzisweni okulandelayo.
5. Amakhono akhethekile ekusebenziseni
Embonini yokudla, i-methylcellulose ivame ukusetshenziselwa ukwenza izinto zokujiya, iziqinisi noma ama-colloid, njenge-ayisikhilimu, isinkwa, iziphuzo, njll. Kulezi zicelo, isinyathelo sokuxuba i-methylcellulose namanzi sithinta ngqo umuzwa womlomo kanye nokuthungwa komkhiqizo wokugcina. Inani lokusetshenziswa kwe-methylcellulose yezinga lokudla ngokuvamile lincane, futhi ukunakwa okukhethekile kudingeka kukhokhwe ekulinganisweni okunembile kanye nokufakwa kancane kancane.
Emkhakheni wezokwelapha, i-methylcellulose ivame ukusetshenziswa njenge-ejenti yokuqhekeka kwamaphilisi noma njengomthwali wemithi. Kulesi simo, ukulungiswa kwemithi kudinga ukulingana okuphezulu kakhulu kwesisombululo kanye nokuqina, ngakho-ke kunconywa ukulawula ikhwalithi yokugcina yomkhiqizo ngokwandisa kancane kancane i-viscosity kanye nokwenza izimo zokuxuba zibe ngcono.
Ukuxuba i-methylcellulose namanzi kuyinqubo edinga isineke nekhono. Ngokulawula izinga lokushisa lamanzi, ukulandelana kokuhlanganisa kanye nesivinini sokuxuba, kungatholakala isisombululo se-methylcellulose esifanayo nesizinzile. Kungakhathaliseki ukuthi kuyindlela yokuhlakazeka kwamanzi abandayo noma indlela ephindwe kabili eshisayo nebandayo, isihluthulelo ukugwema ukugoqana kwempuphu nokuqinisekisa ukuvuvukala nokuphumula okwanele.
Isikhathi sokuthunyelwe: Septhemba-30-2024